Fixes #3447.

R=rsc, gustavo
CC=golang-dev
https://golang.org/cl/6039045

This CL makes

    type T struct { *U }

behave in a similar way to:

    type T struct { U }

Fixes #3108.

R=golang-dev, rsc, gustavo
CC=golang-dev
https://golang.org/cl/5694044

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6210062

With the timed semacquire patch
(kernel-tsemacquire) for Plan 9,
we can now properly do a timed
wait for the semaphore, in
semasleep.

R=golang-dev, rsc, rminnich, ality, r
CC=0intro, golang-dev, john, mirtchovski
https://golang.org/cl/6197046

As our CL number could be as small as 152046, changed CL number's lower bound
to 150000. Hopefully our issue count won't reach 150000 any time soon.
Chrome on Mac OS X has very strange behavior regarding the focus, although we
force the focus to the input box on load, the page still come up with focus on
"issue". Set the tabindex of the input box as a workaround.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6212055

        After CL 6185047, ./all.bash passed.

benchmark                       old ns/op    new ns/op    delta
BenchmarkAppend                      5558         4894  -11.95%
BenchmarkAppendSpecialCase           5242         4572  -12.78%
BenchmarkSelectUncontended           3719         2821  -24.15%
BenchmarkSelectContended             3776         2832  -25.00%
BenchmarkSelectNonblock              1030         1089   +5.73%
BenchmarkChanUncontended              530          422  -20.38%
BenchmarkChanContended                534          444  -16.85%
BenchmarkChanSync                    1613         1492   -7.50%
BenchmarkChanProdCons0               1520         1351  -11.12%
BenchmarkChanProdCons10               785          668  -14.90%
BenchmarkChanProdCons100              564          473  -16.13%
BenchmarkChanProdConsWork0          11205        10337   -7.75%
BenchmarkChanProdConsWork10          9806         9567   -2.44%
BenchmarkChanProdConsWork100         9413         9398   -0.16%
BenchmarkChanCreation               11687         8715  -25.43%
BenchmarkChanSem                      553          453  -18.08%
BenchmarkCallClosure                   22           22   +0.44%
BenchmarkCallClosure1                  28           28   +0.71%
BenchmarkCallClosure2                2224         1668  -25.00%
BenchmarkCallClosure3                2217         1629  -26.52%
BenchmarkCallClosure4                2240         1684  -24.82%
BenchmarkComplex128DivNormal          930          912   -1.94%
BenchmarkComplex128DivNisNaN          862          866   +0.46%
BenchmarkComplex128DivDisNaN          849          852   +0.35%
BenchmarkComplex128DivNisInf          556          583   +4.86%
BenchmarkComplex128DivDisInf          522          512   -1.92%
BenchmarkConvT2E                      175          159   -9.14%
BenchmarkConvT2EBig                  2418         1823  -24.61%
BenchmarkConvT2I                      545          549   +0.73%
BenchmarkConvI2E                       35           32   -9.58%
BenchmarkConvI2I                      404          391   -3.22%
BenchmarkAssertE2T                     75           62  -16.25%
BenchmarkAssertE2TBig                  76           63  -16.80%
BenchmarkAssertE2I                    427          409   -4.22%
BenchmarkAssertI2T                     82           66  -20.29%
BenchmarkAssertI2I                    430          416   -3.26%
BenchmarkAssertI2E                     36           32  -12.50%
BenchmarkAssertE2E                     35           35   +0.57%
BenchmarkFinalizer                   3224         2941   -8.78%
BenchmarkFinalizerRun              117392        84772  -27.79%
BenchmarkStackGrowth                 5267         5930  +12.59%
BenchmarkSyscall                      191          167  -12.57%
BenchmarkSyscallWork                 9918         7713  -22.23%
BenchmarkIfaceCmp100                 1645         1652   +0.43%
BenchmarkIfaceCmpNil100              1433         1440   +0.49%

R=dave, rsc
CC=golang-dev
https://golang.org/cl/6202070

        We explicitly use plainformatter to avoid the
        user's debug setting changing our behavior.
        Fixes #3603.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6201069

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6195096

        Partly copied from CL 5685076.

R=golang-dev, adg, r
CC=golang-dev
https://golang.org/cl/6112064

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6198075

Fixes #3466.

gofmt -w src misc causes no changes.

R=rsc
CC=golang-dev
https://golang.org/cl/6206073

Implement getcontext and sigprocmask for NetBSD - these will soon be
used by the thread handling code.

Also fix netbsd/386 signal handling - there is no sigreturn, just
return so that we hit the trampoline.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6215049

Use correct system calls/syscall numbers for NetBSD.

R=golang-dev, for.go.yong, rsc
CC=golang-dev
https://golang.org/cl/6200070

Also add -n -x flags to doc, fmt, vet.
Also shorten unknown command error.

Fixes #3612.
Fixes #3613.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/6211053

R=golang-dev, for.go.yong
CC=golang-dev
https://golang.org/cl/6197080

Before:
./x.go:6: first argument to append must be slice; have nil

After:
./x.go:6: first argument to append must be typed slice; have untyped nil

Fixes #3616.

R=ken2
CC=golang-dev
https://golang.org/cl/6209067

Update/correct NetBSD signal handling - most of this is needed due to
the correctly generated runtime definitions.

R=golang-dev, m4dh4tt3r, rsc
CC=golang-dev
https://golang.org/cl/6195079

Fix and regenerate runtime defs for NetBSD.

Whilst the mcontext struct can be handled across architectures,
the registers are provided as defines that index an array, rather
than as members of the struct. Since these are architecture
dependent, include them via a defs_netbsd_<arch>.go file.

R=golang-dev, m4dh4tt3r, rsc
CC=golang-dev
https://golang.org/cl/6190070

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6206056

Parallel GC needs to know in advance how many helper threads will be there.
Hopefully it's the last patch before I can tackle parallel sweep phase.
The benchmarks are unaffected.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6200064

Fix types/names so that these functions work with the generated
syscall/z* files.

R=golang-dev, m4dh4tt3r
CC=golang-dev
https://golang.org/cl/6201078

Set the TLS base using the _lwp_setprivate() syscall, instead of via
sysarch(). NetBSD tracks the pointer passed to _lwp_setprivate() and
restores this value when restoring mcontext. If sysarch() is used
directly, restoring an mcontext trashes the FS/GS value, resulting
in a segfault when we next try to access the TLS.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6206062

Empty parts can be either of the form:

a) "--separator\r\n", header (w/ trailing 2xCRLF), \r\n "--separator"...
or
b) "--separator\r\n", header (w/ trailing 2xCRLF), "--separator"...

We never handled case b).  In fact the RFC seems kinda vague about
it, but browsers seem to do a), and App Engine's synthetic POST
bodies after blob uploads is of form b).

So handle them both, and add a bunch of tests.

(I can't promise these are the last fixes to multipart, especially
considering its history, but I'm growing increasingly confident at
least, and I've never submitted a multipart CL with known bugs
outstanding, including this time.)

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6212046

R=r
CC=golang-dev
https://golang.org/cl/6203076

Unbalanced extra right parenthesis produced an internal error instead of
a more descriptive one.

Fixes #3406.

R=r, rsc
CC=golang-dev
https://golang.org/cl/6201063

Fix mkerrors.sh so that it works on NetBSD.

Remove directory mode bits from types - this already appears in errors.

Regenerate the z* files now that cgo is working.

R=golang-dev, m4dh4tt3r, r
CC=golang-dev
https://golang.org/cl/6201077

certLen was decoded incorrectly if length > 2^16-1.

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/6197077

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6188076

No perf/semantic changes, merely improves code health.
There were several questions as to why Once.Do uses
atomic.CompareAndSwap to do a store.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6208057

R=adg
CC=golang-dev
https://golang.org/cl/6208051

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6120047

The change accidentally come in with this revision:
https://code.google.com/p/go/source/detail?spec=svn345cbca96c5550f2e89bc727703301933802923c&r=14c38c23c819a17021b1808cf4a34ef3a1a17db5

R=golang-dev
CC=golang-dev
https://golang.org/cl/6195073

This is factored out part of:
https://golang.org/cl/5279048/
(parallel GC)

R=bsiegert, mpimenov, rsc, minux.ma, r
CC=golang-dev
https://golang.org/cl/5986054

we can't add the division result to n during iteration, because it might
turn n into NaN or Inf.

R=golang-dev, rsc, iant, iant
CC=golang-dev
https://golang.org/cl/6197045

Use correct syscall numbers and arguments for NetBSD.
Provide a trampoline for signal returns (using signal API 3).

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6209048

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6198063

Manually repair/update z* files for netbsd - this allows Go to
compile again on 386.

R=golang-dev, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6194064

Also set maxContractLen automatically.
Note that the table size is much bigger than it needs to be.
Optimization is best done, though, when the language specific
tables are added.

R=r
CC=golang-dev
https://golang.org/cl/6167044

go help remote used to reference "go help importpath", which has
changed to "go help packages".

Fixes #3598.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6201065

Tested manually.

Fixes #3554.

Before:
$ cd $GOROOT/src/pkg
$ go list io
io
$ go list io/...
io
io/ioutil
$ cd $GOROOT/src/pkg/io
$ go list .
io
$ go list ./...
io/ioutil

After:
$ cd $GOROOT/src/pkg
$ go list io
io
$ go list io/...
io
io/ioutil
$ cd $GOROOT/src/pkg/io
$ go list .
io
$ go list ./...
io
io/ioutil
$ go list ././...
io
io/ioutil
$ go list ././.././io/...
io
io/ioutil
$ go list ../image
image
$ go list ../image/...
image
image/color
image/draw
image/gif
image/jpeg
image/png
$ go list ../.../template
html/template
text/template
$ cd $GOROOT/src/pkg
$ go list ./io
io
$ go list ./io/...
io
io/ioutil
$ go list ./.../pprof
net/http/pprof
runtime/pprof
$ go list ./compress
can't load package: package compress: no Go source files in /home/nigeltao/go/src/pkg/compress
$ go list ./compress/...
compress/bzip2
compress/flate
compress/gzip
compress/lzw
compress/zlib
$ cd $GOROOT/src/pkg/code.google.com
$ go list ./p/leveldb-go/...
code.google.com/p/leveldb-go/leveldb
code.google.com/p/leveldb-go/leveldb/crc
code.google.com/p/leveldb-go/leveldb/db
code.google.com/p/leveldb-go/leveldb/memdb
code.google.com/p/leveldb-go/leveldb/memfs
code.google.com/p/leveldb-go/leveldb/record
code.google.com/p/leveldb-go/leveldb/table
code.google.com/p/leveldb-go/manualtest/filelock
$ go list ./p/.../truetype
code.google.com/p/freetype-go/example/truetype
code.google.com/p/freetype-go/freetype/truetype
$ go list ./p/.../example
warning: "./p/.../example" matched no packages
$ go list ./p/.../example/...
code.google.com/p/freetype-go/example/freetype
code.google.com/p/freetype-go/example/gamma
code.google.com/p/freetype-go/example/raster
code.google.com/p/freetype-go/example/round
code.google.com/p/freetype-go/example/truetype
code.google.com/p/x-go-binding/example/imgview
code.google.com/p/x-go-binding/example/xgb

R=rsc
CC=golang-dev
https://golang.org/cl/6194056